This is mainly a bug fix release for the reported bugs in beta47. In addition it has a significant User Interface performance improvement noticable when you need to process 1000s of images in APP.
2026-10-03 APP 2.0.0-beta47 has been released !
This is a very big release... many code optimizations/rewrites, many parts of APP are much faster and more precise, especially star analysis and registration are much faster ! Big mosaics will go much faster 🙂
And we introduce a new preview filter, which includes the new Adaptive Deep Sky Stretch and a General Levels Stretch, this has been long over due. The old preview filter (the panel on the right side to stretch and preview your data) has not been updated for a couple of years and it is a critical part of any APP session.
Adaptive Deep Sky Stretch or ADSS is a much more intuitive stretch algorithm. It is also color preserving (which is a great new addition in itself ! ) which means that the highlights are no longer bleached, color is maintained from the linear data while stretching. You can simply stretch your data using the sky background level and signal width sliders which work much easier and more intuitive. You no longer need to fiddle with the old complicated sliders with zoom buttons. All the zoom buttons for the sliders are made redundant. And you can enter slider values in the slider value fields yourself. I will make a youtube video in the coming days to explain and fully introduce ADSS. Once the video is ready, it will be highlighted on the forum.
RGB Combine upgrade !. The RGB Combine Tool has been rewritten mostly. The tool is faster and easier to use and most importantly, the Luminance slider to inject a luminance channel or channels into the RGB composite is now working correctly. It no longer bleaches the RGB colors. Combined with the new ADSS preview, you will get much better and easier great composites with great color! I will also explain this in a new youtube video.
Hello Vincent, how is actually the projection rotary controller in 4 register to understand. When I try different settings, the l-c-registered preview looks strange. 🤔Â
Well, apparently that is a known bug that shows itself in certain modes. Mabula is aware of it and it's on the fix-list, it should ofcourse rotate while staying in the frame. Thanks for the report!
Hello Vincent, how is actually the projection rotary controller in 4 register to understand. When I try different settings, the l-c-registered preview looks strange. 🤔Â
The projection rotate enable you to directly rotate the field of view. Once the data is registered, you can study this behaviour with the l-c-registered image viewer mode 😉
I have solved the bug, the bug would only happen with normal integration (Lanczos, Bicubic etc. data interpolations). If you enabled drizzle it would already work correctly.
FIXED, 4) REGISTER, PROJECTION ROTATE, due to an error in the algebra, the pre-rotation of the projection of the Field Of View (FOV) did not work correctly for regular integration. It did work properly for drizzle integration. The field of view was not properly shown in the integration Field Of View. This is now fixed. First image shows the problem that is fixed, second image shows the correct result after the fix:
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Will try to release this in another Beta today or tomorrow 😉
Mabula
This post was modified 7 years ago by Mabula-Admin
Hello Mabula, hello Vincent. I'll check it out with drizzle settings. Have you seen the strange behavior in the stretch module? I reported it in Preview and save calibrated image errors.
